Astrophysics

   

Redeployment Options for the International Space Station

Authors: Gary V. Stephenson

With the assumption that the current mission of the International Space Station (ISS) will draw to a close by 2020, redeployment options are explored and contrasted for ISS components in the post-2020 timeframe. Low Earth Orbit (LEO) redeployment options explored include a depot assembly facility and a refueling facility. Beyond LEO redeployment options explored include an assembly and refueling facility at the Earth-Moon L1 Lagrange point, a solar observing and / or energy collection facility at the Earth-Sun L1 Lagrange point, an astronomical observation facility at the Earth-Sun L2 Lagrange point, a lunar orbiting facility, and a Martian orbiting facility. The cost of boosting ISS components to new orbits is considered as part of the study of these latter options, as is any retrofit or modification of components required by these new missions. Logistics requirements are also included in the cost of each option. All architectural options are analyzed using Living Systems Theory [Miller, 1978] and the Hatley-Pirbhai context diagram template. Technical risk and maturity is analyzed, and a parametric cost model is developed. Cost benefit analyses are performed for each of the selected redeployment missions using Pugh matrix and quality functional deployment (QFD) methodologies for an overall recommendation based on the currently enunciated goals as described by the 2009 Augustine Commission on human space flight (HSF).

Comments: 90 pages

Download: PDF

Submission history

[v1] 3 Dec 2010
[v2] 20 Apr 2010

Unique-IP document downloads: 573 times

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